Assig-nor to himself



@uiten @tutes ge-'tent @Hirn ALONZO noALDWnLL, or sYRAoUsn-NEW YORK, AssIGNOR TO HIMSELrl AND JAOOBPINKERTON, or SAME PLAGE. 1

` Letters Patent No. 81,748, dated September 1, 1868. ,l

die' ciginilt :time tu in tlgesc ftttrs atent nu mating :gint nf the saine.

To ALL WHOMr 1r MAY OONOERN: i

Beit known that I, ALONZO B. CALDWELL, assignor to Alonzo B. Caldwell and Jacob Pinkerton, of the v city of Syracuse, and State of New York, have invented certain new and useful Improvements in Journal-Boxes composed of cast iron, ribbed with'bronze metal, and lled in with a composition of soft metal, designed more purtipularlyas improvements on the journal-box of J. Mosher Brower, to whom Letters Patent of the United Stateswerepgranted, bearing date June 19, 1863, and numbered 38,808; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the annexed drawings, which form a part of this specification, (similari` letters representing corresponding parts,) VWhe-rein- V Figure 1 represents'an outside plan of the bronze-metal portion of the box. i

r Figure 2, a transverse section ofthe box with journal in pince.

Figure 3,8. longitudinal seetionthrongh the bronze andcast-iron portions, showing the manner in .which they are held together.` I v Figure 4 isa view of the inside of the box when complete, the dark portion indicating cast iron, the pink.- colored portion bronze metal, and the blue portion soft metal. i y

J, in 5g. 2,4 is an ordinary journal. V I v i A is the outershell, of cast iron, with'holes, a a, inthe same to receive the knobs or hooks z h on the back of the bronze-metal frame, as hereinafter more fully described.`

B is the bronze-metal frame, with a. rib, R, thrbugh the centre` and with arms` b b b b, extending therefrom upon e'aoh sido. l J i My improvements relu-te especially tothe form'ot this frame to adopt it more 'perfectly to the use for which it was designed.,

Experience has demonstrated that the manner 'of holding the bronze-metal and east-iron portions together,v as described in the original potent, was not suiiciently strong. -I therefore make the knobs or hooks h with heads thereto, or their equivalent, as shown in the drawings, to constitute a part of the bronze-metal frame, so that when the box is made, thje cast-iron metal, while in a molten state, will run around the heads 7L h, and they are thus made to hold the frairiesecurely to thepcast-iron shell A.

To further that object, I also make shoulders, s s, as a part of the bronze-metal frame extending over the cast-ironsholl A,as'will fully appear in-the drawings.

4l'ilxperience has also shown that the soft metal parts, m m m, by use, will crush down'in a ridge between the outer ends of the arms b b, when the arms are made according to the original patent, and to prevent this I make the iiangesfff across the ends of the arms, and forming a part thereof, which operate to brace against andsupport the soft metal, and keep it more securely in place, and prevent it from being crushed or shoved down, ns aforesaid. l

.The shoulders s s lalso keep the cast-iron metal ends from cutting the-wrought iron with which it might' come ineontact but for such shoulders, especially when the box is pretty well worn down. 5 Under the originel patent referred to, the cast-iron metal portion of the box was cast by itself, and also the bronze-metal portion by itseli'fgThey were then put together, and the soft metal run in to fill up the spaces in, the box desi'gr iedl.t`oi"it. Such soft metal was alsothe principal if-not the sole reliance to hold the box together, mainly by a key in the centre, as will beseen by reference to said patent.- The soft metal did not suiciently answer 'the purpose, and thc'key was easily drawn out. A

-V Under my improvements, Imuke the bronze-metal portion, asv above described, with the knobs o r hooks l; It and shoulders s s, forming n part thereof, as above described, and with this complete, I then mould and cast upon such bronzc-metal frame the cast-iron portion A, iilling up the space between the shoulders s s, and running the moltcnmctai around the head'sof the knobs or hooks h h, as above described. What Iciaim as my invention, and desire to secure by Letters Patent, is-

l. The knobs or hooks h h, or -their equivalents, as a. part of the bronze-metal frame B, substantially as and for the purposes described.

2. I claim the flaugesfff, upon the ends of the arms b b, when made and applied in the manner and for the purposes described. I

8. I claim the cast-iron, shell A, when cast around the heads of the k'nobs or hooks L h upon the bronzemetal frame B, in the manner ,und for the purpose asabove described. I

4. I claim the shoulders @"8 upon the bronze frame Biu eombination with the knobs or hooks L h and holes a a in the cast-irou frame A., when used to hold more securely together and strengthen the bronze-metal und east-iron portions of the box, in the manner described.

5. I claim a, journal-box, composed of the bronze-metal portion B, when made with the flanges ff und shoulders s s, combined with the cast-iron frme A, made as aforesaid, with thejsoft-metal portions m 'm m filled in, substantially in the manner aud foi' the purposes described. i

` A. B. CALDWELL.

Witnesses:

N. B. SMITH, C. W. SMITH. 

